(DOD, NATO) In an amphibious operation, a ship designated as a control point for landing craft, amphibious vehicles, and helicopters evacuating casualties from the beaches. Medical personnel embarked in the evacuation control ship effect distribution of casualties throughout the attack force in accordance with ship's casualty capacities and specialized medical facilities available, and also perform emergency surgery.

Source: US DoD Joint Publication 1-02, DOD Dictionary of Military and Associated Terms (as amended through 9 June 2004).